2019年mpacc考试英语真题——连词987

{01}The humans are destroying nature day by day,__________of course,will cause severe punishment from it sooner or later.

A.who

B.when

C.on which

D.Which

解析：略
本题选D。
{02}Why is it _____ he can’t get along well with his classmates?

A./

B.this

C.that

D.it

解析：略
本题选C。
{03}The buses, most of _______ were already full, were surrounded by an angry crowd.

A.that

B.it

C.them

D.which

解析：考查定语从句。most of which were already full为非限制性定语从句，修饰 the buses.指大多数公共汽车都已经满了，选D。
本题选D。